Current Cam is a "C" Cam, aka 1bbl. 0.400" lift with 1.5 follower ratio. 1968-69 Pontiac 250/175hp IVO 14.0 IVC 46.0 IDUR 240.0 LIFT 0.267 EVO 46.0EVC 14.0 EDUR 240.0 LIFT 0.267 OLAP 28.0 ICL 106.0 ECL 106.0 LSA 106.0
New Cam on the bench there is an "E" Cam, aka 4bbl automatic. 0.438" lift with 1.5 follower ratio. 1969 Pontiac 250/215hp Auto "E" 546670 IVO 14.0 IVC 50.0 IDUR 244.0 LIFT 0.292 EVO 52.0 EVC 12.0 EDUR 244.0 LIFT 0.292 OLAP 26.0 ICL 108.0 ECL 110.0 LSA 109.0
My reground cam was off a semi-blank E cam core and has .460" lift and slight split pattern on duration and change in LSA.
One of the things to consider is the OHC design in effect has the equivalent of a fast ramp lobe. The lift numbers always look tiny to me, but dyno testing says .460" is a good number and dimishing returns after that, something about port velocity.
There are a few folks making over 300HP naturally aspirated with a similarly spec'd re-ground cam (from the same guy that re-ground my cam), mine is tweaked slightly for a turbo. Ultimate goal is 600HP at the flywheel with the turbo. Here is a pretty cool SAE engineering report on the '66 230. http://s412.photobucket.com/user/SPRINT-6/slideshow/S%20A%20E
Recap on the turbo plans to get to that 600HP. Ported head and chamber re-worked, forged pistons, big intercooler on the car, reverse flow cooling to keep the head cool, custom intake to separate it from the exhaust heat, EFI with sequential injection and possibly individual cylinder fuel trims to make sure each cylinder is running equal AFR's, precise timing from the crank trigger and individual coils and then cram as much boost into it as possible with a safe tune on 91 octane. I'll step up to a meth injection system if I'm just short of 600HP. If I can get to 300HP naturally aspirated, then 15psi ought to do it, but I'm going to go as high as practical, so if I make more than 600HP, I'll be okay with that too. I'll probably realistically be building two engines, first one is going to be a stock forged rod engine and heavy (stock syle) forged piston, second will be an aftermarket forged rod and light weight forged piston. I have reconditioned with ARP bolt rods and old forged TRW(?) pistons already.
